Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 559 (STARTING SYSTEM)DIAGNOSTIC INFORMATIONSTARTER SOLENOID DOES NOT CLICK
2003 Chevrolet TrailBlazer 4.2 S, 4WD
Starter Solenoid Does Not Click
2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Starter Solenoid Does Not Click
WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
- Did you perform the DIAGNOSTIC SYSTEM CHECK - ENGINE ELECTRICAL? If so, go to next step. If not, go to DIAGNOSTIC SYSTEM CHECK - ENGINE ELECTRICAL .
- Turn the ignition switch to the START position. Does the starter solenoid click? If so, go to INTERMITTENTS . If not, go to next step.
- Turn OFF the ignition. Disconnect the starter solenoid crank voltage circuit from the starter solenoid. Connect a test light between the starter solenoid crank voltage circuit of the starter solenoid and a good ground. Turn the ignition to the START position. Does the test light illuminate? If so, go to step 7. If not, go to next step.
- Turn OFF the ignition. Disconnect the Park/Neutral Position (PNP) switch. Connect a 10 Amp fused jumper between the crank voltage circuit of the PNP switch and the starter solenoid crank voltage circuit of the PNP switch. Turn the ignition to the START position. Does the test light illuminate? If so, go to step 8. If not, go to next step.
- Connect a test light between the crank voltage circuit of the PNP and a good ground. Turn the ignition to the START position. Does the test light illuminate? If so, go to step 11. If not, go to next step.
- Test the crank voltage circuit of the PNP switch for a high resistance or an open. Did you find and correct the condition? If so, go to step 15. If not, go to step 10.
- Inspect for poor connection at starter solenoid. Did you find and correct the condition? If so, go to step 15. If not, go to step 12.
- Inspect the PNP switch for proper operation. Did you find and correct the condition? If so, go to step 15. If not, go to next step.
- Inspect for poor connection at the PNP switch. Did you find and correct the condition? If so, go to step 15. If not, go to step 13.
- Inspect for poor connection at the ignition switch. Did you find and correct the condition? If so, go to step 15. If not, go to step 14.
- Repair the high resistance or open in the starter solenoid crank voltage circuit. After repair is complete, go to step 15.
- Replace the starter. See STARTER MOTOR under REPLACEMENT PROCEDURES. After replacement is complete, go to step 15.
- Replace the PNP switch. See PARK/NEUTRAL POSITION SWITCH in SERVICING article in AUTOMATIC TRANSMISSION. After replacement is complete, go to step 15.
- Replace the ignition switch. See IGNITION SWITCH in GAUGES & INSTRUMENT PANEL article in ACCESSORIES & EQUIPMENT. After replacement is complete, go to next step.
- Operate the system for which the symptom occurred. Did you correct the condition? If so, then system is okay. If not, go to step 2.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.